Interesting...I guess I am more of a 'product' person, but process is important to me too.
Maybe it's a factor of age...I'm 39 & work full time plus - relaxation time comes in dribs and drabs and MOST of my energy is spent on work or daily living. If I made slow quilts I'd make no quilts, I'd probably still be working on my first one!
Instead I've made 30-some in just over 2 years. Lots of my family members and friends and even a few strangers snuggle under my quilts, and THAT is a big part of why I enjoy this hobby.
And I don't have anything against slow quilts either, I'm (slowly) working on an EPP hexie. But I'll probably finish another 30 quilts before that hexie gets done.